Biosystematic relationships and the formation of polyploids
Biosystematic relationships and the formation of polyploids
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DOI：
10.1002/tax.602003
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发表时间：
2011-04-01
期刊：
影响因子：
3.4
通讯作者：
Soltis, Douglas E.
中科院分区：
文献类型：
--
作者：
Buggs, Richard J. A.;Soltis, Pamela S.;Soltis, Douglas E.
自从一个世纪前发现多倍体（细胞核中存在两组以上的染色体）以来，科学家们一直在研究和推测可能促进多倍体形成的因素。最古老和最持久的想法之一是杂交促进全基因组加倍。第一次提出空集。Winge的研究，这个概念是由上个世纪的主要植物进化生物学家发展和完善的，特别是在J. Clausen，D. D.凯克和W. M.嗨在过去的几年里，这个问题已经被不同的作者重新审视，使用分子系统学方法来研究与多倍体形成有关的亲本分歧模式。分子遗传学和基因组进化的进展也允许重新评估早期研究人员提出的机制论点。在这里，我们调查和批判性地评价在过去的世纪在这一领域的发展，并得出结论，根据最近的进展，目前没有令人信服的证据表明，不同的父母之间的杂交作为多倍体化的驱动力。
Since the discovery of polyploidy (the presence of more than two chromosome sets in a nucleus) a century ago, scientists have investigated and speculated about the factors that could promote polyploid formation. One of the oldest and most enduring ideas is that hybridization promotes whole-genome doubling. First suggested by empty set. Winge, this concept was developed and refined by the major plant evolutionary biologists of the last century, and especially in the biosystematic thinking of J. Clausen, D.D. Keck and W.M. Hiesey. In the past few years, this issue has been revisited by various authors, using molecular systematic methods to study patterns of parental divergence in relation to the formation of polyploids. Progress in molecular genetics and genome evolution also allows re-appraisal of the mechanistic arguments put forward by earlier researchers. Here we survey and critically appraise developments in this field over the past century, and conclude that in the light of recent progress there is not currently persuasive evidence that hybridization between divergent parents serves as a driver for polyploidization.